Veterinary instrument



(No Model.)

B. GHAMPLIN. VETERINARY INSTRUMENT.

Patented May 28, 1889.

UNITED STATES PATENT OFFICE.

BENJAMIN OHAMPLIN, OF CORTLAND, ILLINOIS.

VETERINARY INSTRUMENT.

' SPECIFICATION forming part of Letters Patent No. 404,074, dated May28, 1889. Application filed February 19, 1889. Serial No. 300.403- (Nomodel.)

To all whom it may concern:

Be it known that I, BENJAMIN CHAMPLIN, of Cortland, in the county of DeKalb and State of Illinois, have invented a new and Improved SurgicalInstrument, of which the following is a full, clear, and exactdescription.

Reference is to be had to the accompanying drawings, forming a part ofthis specification,

in which similar letters of reference indicate corresponding parts inall the figures.

Figure 1 is a side elevation, partly in section, of my improved surgicalinstrument; and Fig. 2 is an edge view.

The object of my invention, is to provide an instrument for opening theducts of cows teats which have been stopped by an obstruction or by astricture.

My invention consists of a lance provided with a rounded tip and havingshoulders near the tip for engaging the obstruction, the said lancebeing mounted on a suitable handle.

The lance A, which is formed of steel hardened and tempered in the usualway, is provided with a rounded head, a, having shoulders b projecting asmall distance beyond the sides of the lance. The cutting portion of thelance is made tapering, as shown,,with two cutting-edges, c c. Theshanl; d of the lance is provided with a tang, e, for insertion in thehandle The lance is used by inserting the rounded point into the duct ofthe teat and forcing the lance inward as far as necessary; thenWithdrawing it. I have found in practice that this treatment effectuallycures all strictures of the ducts of the teats and is a permanent remedyof hard milking.

Having thus fullydescribed my inventi0n,I claim as new and desire tosecure by Letters Patent- An improved surgical instrument, consisting ofa lance provided with a rounded head having shoulders projecting beyondthe sides of the lance, substantially as specified.

BENJAMIN OHAMPLIN.

WVitnesses:

FRANK D. Roor, NATHAN H. Fun.

